package cn.edu.zsc.rbac.service.array;


import cn.edu.zsc.rbac.domain.dto.DeptDto;
import cn.edu.zsc.rbac.domain.entity.Dept;
import cn.edu.zsc.rbac.domain.vo.DeptVo;
import cn.edu.zsc.rbac.domain.vo.Result;
import cn.edu.zsc.rbac.service.IDeptService;
import cn.edu.zsc.rbac.service.IUserService;


public class DeptService extends  BaseService<Dept, DeptDto, DeptVo> implements IDeptService{

    private IUserService userService;

    private static IDeptService singleton;

    private DeptService(){
        data  = new Dept[DATA_SIZE + 1];
        temp = new DeptVo[DATA_SIZE];
    }

    public static IDeptService getInstance(){
        if(singleton == null){
            singleton = new DeptService();
        }
        return singleton;
    }

    @Override
    DeptVo convertToVo(Dept dept){
        return new DeptVo(dept.getId(), dept.name, dept.phone);
    }

    @Override
    Dept createEntity(DeptDto dto,int id){
        return new Dept(dto.name,dto.phone);
    }

    @Override
    void updateEntity(DeptDto dto,Dept dept){
        dept.name = dto.name;
        dept.phone = dto.phone;
    }

    @Override
    public Result delete(int id) {
        if(!existsById(id)){
            return Result.failure("删除失败，不存在该数据");
        }
        if(userService == null){
            userService = UserService.getInstance();
        }
        if(userService.deptInUse(id)){
            return Result.failure("删除失败，还有用户属于该部门，不能删除");
        }
        data[id] = null;
        return Result.success("删除成功", null);
    }

}
